Ice maker



FIG. 1 is front perspective view of the ice maker;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in the drawings represent unclaimed portions of the ice maker and form no part of the claimed design. 

CLAIM The ornamental design for an ice maker, as shown. 